Hi
I am replacing a hall light with a more modern one. It is operated from a one way switch now but we had extensive electrical work done when we bought the house 17 years ago as we reconfigured some of the rooms. I have a vague recollection that the light might have been two-way at that time. It is a simple old for new job and I noted down how the old light was wired so pretty sure I can proceed safely but I am confused by the cabling.
There are three cables in roof space running to the light. All three reds are joined in a single connector. Two blacks and a blue are also joined in a single connector. There is one yellow cable in a connector. The light was cabled with brown connected to the single yellow connector and blue to the two blacks and blue connector. I have omitted all earths for clarity but they are all connected.
I am assuming the three cables are two of two core and earth and a single three core and earth. I was not expecting to see a three core and earth wire going to the light fitting as I understood that type of cable ran between two switches.
I intend to connect the new light as before ie brown to the yellow connector and blue to the two blacks and one blue connector. But hoping someone can explain why the cables are connected that way and perhaps confirm it is because the light was at one time switched two way?
TIA
